This OTR Top Plate brings added security, safety, and significant cost savings. Experience extended life with the top plate’s heavy duty ductile cast iron giving allowance for high durability and superior ductility under stress, as well as resistance to wear and corrosion. With an improved design, the self-lubricating surface has a lubrication reservoir - allowing grease to reach all surfaces. With this high-quality, heavy duty replacement top plate, you don’t need to rebuild your old, worn-out fifth wheel.